441147
聚苯乙烯
average Mw ~350,000, average Mn ~170,000
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PS
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关于此项目
线性分子式:
[CH2CH(C6H5)]n
化学文摘社编号:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
MDL number:
产品名称
聚苯乙烯, average Mw ~350,000, average Mn ~170,000
SMILES string
c1(ccccc1)C=C
InChI
1S/C8H8/c1-2-8-6-4-3-5-7-8/h2-7H,1H2
InChI key
PPBRXRYQALVLMV-UHFFFAOYSA-N
form
pellets
melt index
2.0-4.0 g/10 min (200°C/5kg)
mol wt
average Mn ~170,000
average Mw ~350,000
impact strength
21 J/m (Izod, ASTM D 256, 23 °C, notched)
impurities
≤5% mineral oil
transition temp
Tg 95 °C
density
1.04 g/mL at 25 °C
elongation
ASTM D 638 - 1.5% (at break)
Quality Level
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Application
挤出成型的发泡包装、餐具、瓶子和玩具。注塑成型的包装容器、玩具和一次性餐具。
Features and Benefits
坚硬透明、中等强度的聚合物，无生物活性，具有良好的尺寸稳定性。易受外界（紫外线）影响而降解。
存储类别
11 - Combustible Solids
wgk
WGK 3
ppe
dust mask type N95 (US), Eyeshields, Gloves
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The separation efficiencies of three different asymmetrical flow field-flow fractionation (AF4) channel designs were evaluated using polystyrene latex standards. Channel breadth was held constant for one channel (rectangular profile), and was reduced either linearly (trapezoidal profile) or exponentially (exponential profile)
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Electrospinning technique applications discussed, emphasizing control of nanofibers and assembly into 3D architectures.
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